Stove-board.



H. E. GUNN.

STOVE 80mm.

APPLICATION FILED APR- 20. 1911.

1,283,504. Patented Nov. 5, 1918.

HARRY, eunn, or CHICAGQ-ILLINQIgQ,

Specification of Lettersfatent.

Pa ented-N915,"152115;

Application flledAprilgO, 19174 Seria1;'No.163;366.c-.

o .a lgw tem. time c m ar Be. it knovsm that. ;[,g H Y ELMER GUNN,

ac tiifl e 1 .O .--:the.-United Sta es, 1 re ding .at

Chicago, in the connty-pf Cook andStateofi Illingis,bareinvented new anduseful Im- PWYem nts i .Stcre-Boardsof whi the ollwinaisa f i i tceatean exact .e p-

placed -.-1up0n -.1.the.-olow.er .layer.- so r'that the. strips thereofare arranged crosswiseitor.

those of the lower layer, and then the two layers are nailed togetherwith tacks, and the edges trimmed and the corners rounded preparatory tocovering the same. The covering consists of sheet tin of a shapecorresponding to that of the body over which it is placed in such mannerthat 1ts clownwardly flanged edges lap past and inclose the edges of thelining or body and are then bent under and stamped by a suitable pressagainst the under margins of the same.

This construction has been in use for years, but while it has beenextensively used, it is objectionable because, owing to the heat and theflimsy character of the wood used in its construction, the lining orbody buckles, twists and shrinks and causes the tin covering to buckleand the under turned edges thereof to work loose, thus causing theseparation of said lining or body and falling apart when moved. Thegreat objection to making stove-boards in any other manner than as abovedescribed, is due to the necessity of using lumber for the lining orbody which, even when thoroughly kiln dried, will buckle and twist andshrink, whether the wood is solid or arranged in layers, and to thegreat expense of the means employed to prevent this happening.

The object of my invention is to construct a stove-board of wood whichwill not warp or twist or shrink and which is particularly adapted foruse in this connection because -tenons and grooves slightly dovetail andto it is practically -,in-fiamn1abl:e, and is :to .C01Zl:= strnet ,andsecure .the cover.;thereto ,inesuchimanner that the attaclnnent ofthe-latter theret willbe per manenta;jand .-;wil l-, not buckle or,workloose- This I flCilQHlPllShg-lll: he herze af r i l yzd and. s. panicalar pointe .outs a hee a ms athe d w n -s: u e-l .i a :p ea ew otthen e ide s a ar m dying nt ntion- Fig. 2 is atransversesection;therethroughr a i ma ot l e F g- F -i 3 s l n t d aseet enit kea an. Q-ttee ne 3%.: Fie-i 1.

ete t e raw n s-, A, A. usesent a series of,redwood. stripsaor planks,hat pre e a y c rrespend.in l ag an width and are'- about. fiveeighthsof anlinch; thi kn s. 1 hes striinsia te Pra de longitudinaltenons a projecting from one t gi l dge. h re eand withacornes spendinglongitudinal grooves in the opposite edge thereof. I prefer to makethese apply glue to the contacting edges of the strips and join thestrips together by inserting the tenon of one strip endwise into thegroove in the edge of the next strip.

The outer edges 0, c, of the outer border strips C, C, of this series ofstrips A is, preferably, planed so as to remove the tenon of the oneborder strip and the groove of the other. The end edges of the strips Aterminate in the same transverse plane and are provided with transversealining dovetail grooves d, d, and a border or cross-strip D of the samekind of wood, which has a longitudinal dovetail tenon e on its inneredge joined and glued to the end edges of the lengthwise strips A. Whenthe body or lining of the stove-board, as thus constructed, hasthoroughly dried its edges are trimmed to give it the desiredrectangular shape and its corners rounded about as shown in thedrawings.

The border-strips C and D are provided on their undersides withlongitudinal grooves E, E, that are parallel to and near their outeredges, and the inner side-walls of these grooves are inclined at asuitable angle and their outer side-walls are perpendicular to theunderside of the stove-board. These grooves E may extend the entirelength of the border strips, or may terminate short of the ends thereof,and while I prefer to make the shape of their transverse contours asjust described they may be shaped diiferently and accomplish the purposefor which they are intended.

WVhen the lining or body of the stove- 1 board has been completed, ashereinbefore explained, its upper surface and edges are covered by sheettin or other suitable material. The superficial area of this cover F isthe same as that of the finished lining or body, and when it is placedupon said lining its edges are flanged downward and then bent under theedges of the lining. The extent of the projection of the portion ofthese flanges engaging the corners of the stoveboard is less than thatof the portions between said corners, which latter portions projectabout twice as far so as to provide strips each having an undercutgroove in one longitudinal edge and a corresponding undercut tenon inthe other through the medium of which they are joined together, andcross-strips of the same material the inner edges of which are providedwith an undercut tenon which enters transverse grooves in the ends ofsaid series of strips and joins the same together, and said coverconsisting of sheet metal applied to the up per surface of said liningand having its edges flanged downward against and inclosing the edges ofsaid lining.

2. A stove board lining, comprising a series of co-extensive woodenstrips in longitudinal edge contact and joined to each other by anundercut tongue and groove connection in each instance, and a pair ofend strips of wood each. traversing the ends of the first named stripsat one side of the lining and joined to them by an undercut tongue andgroove connection.

In witness whereof I have hereunto set my hand this 11th day of April,1917.

HARRY ELMER GUN N Witnesses:

FRANK D. THoMAsoN, FLORENCE MITCHELL.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Weamngton, D. G.

